"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : dbcompatibility-whale
Case Name   : 聚合函数median(col)，计算一组数字的中值，部分测试点合理报错
Create At   : 2023/12/26
Owner       : @zou_jialiang050
Description :
    1.聚合函数median(col)，计算一组数字的中值
    2.聚合函数median(col)错参
    3.聚合函数median(col)多参
    4.聚合函数median(col)无参
Expect      :
    1.成功
    2.失败
    3.失败
    4.失败
History     :
"""
import os
import unittest
from yat.test import Node
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger


class Whale(unittest.TestCase):
    def setUp(self):
        self.logger = Logger()
        self.logger.info(f"-----{os.path.basename(__file__)} start-----")
        self.constant = Constant()
        self.common = Common()
        self.userNode = Node('PrimaryDbUser')
        self.sh_primy = CommonSH('PrimaryDbUser')
        self.dbname = 'db_whale_100'
        self.table = 'tb_whale_100'
    
    def test_median(self):
        text = "---pre1:创建A兼容性数据库;expect:成功---"
        self.logger.info(text)
        pre_cmd1 = f"drop database if exists {self.dbname};" \
            f"create database {self.dbname} dbcompatibility='A';"
        pre_msg1 = self.sh_primy.execut_db_sql(pre_cmd1)
        self.logger.info(pre_msg1)
        self.assertIn(self.constant.CREATE_DATABASE_SUCCESS, pre_msg1,
                      text + '执行失败')
        text = "---pre2:在A数据库中创建whale插件;expect:成功---"
        self.logger.info(text)
        pre_cmd2 = f"create extension whale;"
        pre_msg2 = self.sh_primy.execut_db_sql(pre_cmd2, dbname=self.dbname)
        self.logger.info(pre_msg2)
        self.assertIn(self.constant.extension_create_success, pre_msg2,
                      text + '执行失败')
        
        text = "---step1:计算一组数字的中值;expect:成功---"
        self.logger.info(text)
        sql_cmd1_1 = f"CREATE TABLE {self.table} (salary real);"
        msg1_1 = self.sh_primy.execut_db_sql(sql_cmd1_1, dbname=self.dbname)
        self.logger.info(msg1_1)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS, msg1_1,
                      text + '执行失败')

        sql_cmd1_2 = f"INSERT INTO {self.table} VALUES (4500);"
        msg1_2 = self.sh_primy.execut_db_sql(sql_cmd1_2, dbname=self.dbname)
        self.logger.info(msg1_2)
        self.assertIn(self.constant.INSERT_SUCCESS_MSG, msg1_2,
                      text + '执行失败')

        sql_cmd1_3 = f"INSERT INTO {self.table} VALUES (NULL);"
        msg1_3 = self.sh_primy.execut_db_sql(sql_cmd1_3, dbname=self.dbname)
        self.logger.info(msg1_3)
        self.assertIn(self.constant.INSERT_SUCCESS_MSG, msg1_3,
                      text + '执行失败')

        sql_cmd1_4 = f"INSERT INTO {self.table} VALUES (2100);"
        msg1_4 = self.sh_primy.execut_db_sql(sql_cmd1_4, dbname=self.dbname)
        self.logger.info(msg1_4)
        self.assertIn(self.constant.INSERT_SUCCESS_MSG, msg1_4,
                      text + '执行失败')

        sql_cmd1_5 = f"INSERT INTO {self.table} VALUES (3600);"
        msg1_5 = self.sh_primy.execut_db_sql(sql_cmd1_5, dbname=self.dbname)
        self.logger.info(msg1_5)
        self.assertIn(self.constant.INSERT_SUCCESS_MSG, msg1_5,
                      text + '执行失败')

        sql_cmd1_6 = f"SELECT median(salary) from {self.table};"
        msg1_6 = self.sh_primy.execut_db_sql(sql_cmd1_6, dbname=self.dbname)
        self.logger.info(msg1_6)
        self.common.equal_sql_mdg(msg1_6, 'median', '3600', '(1 row)',
                                  flag='1')

        text = "---step2:聚合函数median(col)错参;expect:失败---"
        self.logger.info(text)
        sql_cmd2 = f"select median('test') from {self.table};"
        msg2 = self.sh_primy.execut_db_sql(sql_cmd2, dbname=self.dbname)
        self.logger.info(msg2)
        self.assertIn("invalid input syntax for type double precision",
                      msg2, text + '执行失败')

        text = "---step3:聚合函数median(col)多参;expect:失败---"
        self.logger.info(text)
        sql_cmd3 = f"select median(111,222) from {self.table};"
        msg3 = self.sh_primy.execut_db_sql(sql_cmd3, dbname=self.dbname)
        self.logger.info(msg3)
        self.assertIn("function median(integer, integer) does not exist",
                      msg3, text + '执行失败')

        text = "---step4:聚合函数median(col)无参;expect:失败---"
        self.logger.info(text)
        sql_cmd4 = f"select median() from {self.table};"
        msg4 = self.sh_primy.execut_db_sql(sql_cmd4, dbname=self.dbname)
        self.logger.info(msg4)
        self.assertIn("function median() does not exist", msg4, text + '执行失败')

    def tearDown(self):
        text = '----清理环境----'
        cl_cmd1 = f"drop table {self.table};"
        cl_msg1 = self.sh_primy.execut_db_sql(cl_cmd1, dbname=self.dbname)
        self.logger.info(cl_msg1)
        self.assertIn(self.constant.DROP_TABLE_SUCCESS, cl_msg1,
                      text + '执行失败')
        
        cl_cmd2 = f"drop database {self.dbname};"
        cl_msg2 = self.sh_primy.execut_db_sql(cl_cmd2)
        self.logger.info(cl_msg2)
        self.assertIn(self.constant.DROP_DATABASE_SUCCESS, cl_msg2,
                      text + '执行失败')
        self.logger.info(f'-----{os.path.basename(__file__)} end-----')
